That's a typo in the manual. I'll let our technical writer know.
The range for the CV outputs is -10V to +10V. There are offsets available in the Globals menu for each of the 4 CV outs, which allow you to tweak a few volts in either direction. There are also globals for Scale for each CV out. The Offset and Scale adjustments are useful for fine tuning V/Oct accuracy, and are typically set once and then left alone.
The CV inputs are scaled to work best with +/-5V signals. There is protection for higher voltages, but you won't get much usable range with larger signals. There are also Offset and Scale adjustments in the globals for the 4 CV ins.
The Gate Out provides a +10V signal, and follows the keyboard and/or track 1 of the sequencer.